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As a sailor you should know about local winds. The cause of these winds is difference in temperature; cold air is heavier than warm air. The most popular of these local winds is
sea breeze. Warm air over
land rises...And is replaced by cooler air sinking over
ocean. At night
opposite happens. The land quickly loses its heat at night and oftenfalls to a lower temperature than
water. This results in a light offshore evening wind. On a lake or river,
warm air can rise at
edges to be replaced by
cool air over
water. This can result in a nice breeze for sailing.
Forcast for a Typical Sea Breeze Day: Morning Very Light Winds -No Weather Systems Near -Clear Sky -High Temperatures But Cooler Near
Shore
Afternoon: Wind coming from water starting Midday -Cumulus Clouds over land -Clear over water- Winds Speeds 8 - 12 knots
Evening: Winds Decreasing as sun slips over horizon.
Sailing Terms
Amidships-
middle of
boat.
Backwind-
wind flowing off
sail.
Close Hauled- one of
points of sail; sailing as close to
wind as possible.
Dead Astern- straight behind
Flaking- Folding
sail.
Glide Zone-
distance it take a boat to stop after turningb head to wind.
Heave To- to head
boat into
wind in order to slow it down or stop it.

Linda Cullum is from Cape Cod, MA, with a second home in Vermont. She is the author of Learn to Sail! with Multimedia! an Interactive Sailing training CDROM which teaches all aspects of Sailing incliding Knots, Piloting, Rules of the Road, Weather with digital video from Sail Magazine, narration, animation and quizzes. Visit her site at http://learntosail.net Wishing you the best in your sailing endeavors!